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13211023 = 717195843
BaseRepresentation
bin110010011001…
…010110001111
3220212012010011
4302121112033
511340223043
61151054051
7220202050
oct62312617
926765104
1013211023
117503701
124511327
132977297
141a7c727
15125e59d
hexc9958f

13211023 has 16 divisors (see below), whose sum is σ = 16830720. Its totient is φ = 10094976.

The previous prime is 13210937. The next prime is 13211059. The reversal of 13211023 is 32011231.

13211023 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13211023 - 213 = 13202831 is a prime.

It is a super-2 number, since 2×132110232 = 349062257413058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13210994 and 13211012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661 + ... + 5182.

It is an arithmetic number, because the mean of its divisors is an integer number (1051920).

Almost surely, 213211023 is an apocalyptic number.

13211023 is a deficient number, since it is larger than the sum of its proper divisors (3619697).

13211023 is a wasteful number, since it uses less digits than its factorization.

13211023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13211023 is about 3634.6970987965. The cubic root of 13211023 is about 236.3989171515.

Adding to 13211023 its reverse (32011231), we get a palindrome (45222254).

The spelling of 13211023 in words is "thirteen million, two hundred eleven thousand, twenty-three".

Divisors: 1 7 17 19 119 133 323 2261 5843 40901 99331 111017 695317 777119 1887289 13211023